All Questions

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CSS - Selector "::"

In studies of CSS selectors, we have seen the :: selector at some point. But I did not find specific reference on this keyword :: isolated. That is, I just saw it being applied in selectors mostly related to pseudo-elements.   ...
asked on 29.04.2017 / 21:16
2
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Length of field occupies total value defined?

If the maximum length of a field of type VARCHAR is 65535 (ocupa 65KB) , will it always occupy a space of 65KB in the database for each line even if I put less text in it? EXAMPLE: Does a VARCHAR(65000) field occupy 65kb e...
asked on 26.05.2017 / 19:14
2
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Project based on spa template VS2015. How the service is generated

I created a project using the SPA template in Visual Studio 2015, to learn and understand, but I found this example very complicated. Still do not understand where the service is mounted and loaded?     
asked on 18.05.2017 / 22:52
2
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What is the best way to monitor a value in a database?

I'm working on an item management system, in which I need to constantly monitor the quantity of items available. Upon reaching a pre-set minimum threshold, the system should issue the item into an alert list for it to be reset. What would be...
asked on 12.07.2017 / 03:42
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Is it possible to copy directory names without copying their contents?

For some time I've done this question about recursive search in folders, and now I need to adapt to a different condition. I need to copy just the names of subfolders from a top folder to a third folder, but without copying the most inter...
asked on 20.02.2017 / 17:04
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What is the difference between a package and a module in Python?

Is there a difference between a package and a module in Python? If there is a difference, can you give examples of packages and modules?     
asked on 25.05.2017 / 02:00
3
answers

Unsigned in the primary key increases my chances?

I was setting up a bank for a personal project and I came across creating a table to save a few values, this would use a TINYINT as the primary key, since I assume that I will not exceed 100 records, but if I happen I want to have a ceili...
asked on 21.02.2017 / 17:27
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Jquery ignoring houses on the right

I set up the function below, for validation of values in two fields, one automatic (comes from the bank) and another one entered by the user. What happens is that apparently he ignores the houses to the right of the value. For example: functio...
asked on 19.06.2017 / 14:24
3
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How to know which word is the most used in all registers

I'm doing a top trendig system, however I'm very confused: How do I make the select pull only the 10 most used words in all registers. However, the words are in a column and separated by a comma. NOTE: I'm using PHP 5.3 Tabela posts Estr...
asked on 13.07.2017 / 08:03
2
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How to get the total memory occupied by the application?

I know there's GC.GetTotalMemory , but it only shows the consumption of managed memory. Can you find full application usage?     
asked on 17.04.2017 / 14:38